Connection URL

This driver expects a URL of the following form:

jdbc:jena:mem:dataset=file.nq

The dataset parameter is used to refer to a file containing the
dataset you wish to load. Note that if you are creating the connection in
code you may alternatively opt to provide a Dataset instance directly
as a property named dataset to the
JenaDriver.connect(String, Properties) method instead.

If you simply want to start with an empty dataset you may instead set the
empty parameter to be true e.g.